BUFFALO TWP — State police continue today to investigate the death of a Butler County man who jumped from the Route 28 bridge. Frederick Swartz, 55, of Buffalo Township died of suicide Wednesday, authorities said. Two motorists saw Swartz jump off the bridge, which is about 300 feet above the Buffalo Creek and the Butler-Freeport Community Trail, Sgt. William Myers at the Kittanning station said this morning. Search teams found his body shortly after noon about 80 yards south of the trail. Swartz was a member of the Municipal Authority of Buffalo Township board. He also formerly served on Freeport Borough Council. He worked for a Lawrence County paving company. Police said Swartz drove his company truck onto the bridge and parked it on the side. He walked over to the bridge railing and jumped. “Two people in the same vehicle called it in,” Myers said. “They saw him jump.” The bridge, which is one of the highest spans east of the Mississippi River, has been the scene of suicides over the years. It straddles the border between Butler and Armstrong counties. Police would not say if he left a suicide note. Myers said, “We’re still interviewing family members and trying to determine a motive.”